Zoology
One of the following fish is useful is mosquito control?
A.
Saccobranchus
B.
Scoliodon
C.
Catla
D.
Gambusia
Which is regarded as most primitive shark?
A.
Stegostoma
B.
Heptanchus
C.
Sphyrna
D.
Scyllium
Which group represents class Teleostomi correctly:
A.
Latimeria, Acipenser, Chimaera
B.
Ceratodus, Lepidosiren, Amia
C.
Lepidosteus, Polypterus, Acipenser
D.
Rhinobatus, Latimeria, Amia
Climbing perch is:
A.
Anabus
B.
Pterois
C.
Trichiurus
D.
Nandus
A good example of parental care in fishes is:
A.
Scoliodon
B.
Hippocampus
C.
Catla catla
D.
Anguilla
Which is true with respect to Echenies?
A.
The head resembles a hammer
B.
It is a cartilaginous fish
C.
Dorsal fin is modified into an adhesive disc
D.
Spines are present in second dorsal and anal fins
Which of the following group of fishes have very long air-bladder extending upto the caudal region?
A.
Pleuronectiformes
B.
Anguilliformes
C.
Ophiocephaliformes
D.
Cypriniformes
Which of the following orders includes physostomes fishes (air bladder connected with the intestine)?
A.
Angulliformes
B.
Syngnathiformes
C.
Ophiocephaliformes
D.
Perciformes
Which of the following belongs to the order Beloniformes?
A.
Xenetodon
B.
Hemiramphus
C.
Exoceotus
D.
All of these
The character not associated with the class teleostomi is the:
A.
Presence of operculum
B.
Absence of cloaca and claspers
C.
Single external gill slit on each side of the head
D.
Ganoid scales covering the skin
Mark the incorrect pair.
A.
Eel - migratory
B.
Anabus - accessory respiratory organs
C.
Hippocampus - brood pouch
D.
Lophius - pelagic fish
Which of the following is not a true fish?
A.
Hippocampus
B.
Terpedo
C.
Pteromyzon
D.
Latimeria
Which of the following is the extinct classes of fishes?
A.
Pterichthys
B.
Coccostei
C.
Acanthodii
D.
All of these
Body is covered with five rows of bony scutes in:
A.
Acipenser
B.
Hippocampus
C.
Amia
D.
Pristis
Which one of the following is a true fish?
A.
Silver fish
B.
Cray fish
C.
Pipe fish
D.
Devil fish
Which one of the following is a lung fish?
A.
Latimeria
B.
Notopterus
C.
Neoceratodus
D.
Lepidosteus
Which one of the following is a cartilaginous fish?
A.
Wallago
B.
Anguilla
C.
Notopterous
D.
Torpedo
In class Dipnoi the scales are:
A.
Cycloid
B.
Placoid
C.
Ctenoid
D.
Absent
Weberian apparatus connecting the ear with air bladder is characteristic of the order:
A.
Perciformes
B.
Pleuronectiformes
C.
Cypriniformes
D.
Echeniformes
Electric organs are found in the fishes belonging to order:
A.
Torpediniformes
B.
Raji formes
C.
Lepidosireniformes
D.
Lepidosteiformes
Which is not true for Pisces?
A.
Cold blooded vertebrates
B.
Usually streamlined body
C.
Lateral line system is reduced
D.
Endoskeleton is cartilagineous or bony
Which of the following is a degenerated character in cyclostomes?
A.
Absence of true jaws
B.
Absence of exoskeleton
C.
Absence of paired appendages
D.
Ganglionated dorsal spinal nerve
Tail in Cyclostomata is:
A.
Proterocercal
B.
Homocercal
C.
Heterocercal
D.
Diphycercal
The larva of cyclostomes is known as:
A.
Lamprey
B.
Amphioxus
C.
Ascidian
D.
Ammocoete
Hagfish is the common name of:
A.
Octopus
B.
Balanoglossus
C.
Myxine
D.
Petromyzon